Which of the following describes how electrical current flows?

from low voltage to high voltage

from the detector the source

from high voltage to low voltage

from the detector to the next detector

What is the internal energy of 4.00 mol of diatomic nitrogen gas n2 at 455k

The energy released by a chemical reaction can be measured using a calorimeter. when barium hydroxide octahydrate crystals are reacted with dry ammonium chloride inside of a coffee cup calorimeter, the temperature of the 18.00 g of water in the calorimeter decreases from 30.0°c to 8.0°c. the equation for calculating energy absorbed or released by a reaction is: where q is the energy released or absorbed, m is the mass of water in the calorimeter, cp is the specific heat of water, and δt is the observed temperature change. if the specific heat of liquid water is 4.19 j/g·°c, how much energy was absorbed by the reaction?

=force × distance a. work b. velocity c. pressure d. momentum